Hello there, I have a mystery going on. I want to track matte layer 9 and 10, but all of a sudden the option to track matte layers is unavailable for all the layers in the comp.
As you can see in the picture the whole track matte column is emty. Has anyone any idea how this is possible and how to fix it?
I'm working with AE CC 2014 on windows 10, all the layers are 3D
Thanks in advance!.
Try resetting your workspaces and hiding and unhiding the columns using the icons at the bottom left of the timeline.
Do you have your composition set to use the ray-traced renderer? If so, that's your problem. You'll need to precompose to use track mattes or switch to the standard renderer.
If you can, I'd start weaning yourself off of the ray-traced renderer: http://motionworks.net/after-effects-3d-future/